From floating down a croc- and hippo-infested river in Africa to being stalked by a grizzly bear in the Rockies, Bear Grylls has had his share of close scrapes with wildlife, yet he's always managed to come out alive. Would you? Take this quiz to see how you measure up. Then learn more about survival in any wildlife encounter in our October 2012 Survival Issue.

With 1 million bears roaming North America, chances are pretty good that you'll cross paths with one of them at some point. To make every encounter safe, from grizzly bears to black bears, bone up on bruin identification and etiquette.